then try yourself to find the dp solution of easy questions, mostly in starting dp problems <1300 rating the solution is done by prefix sums, OR you can see others code, even I did the same as you are doing. I wrote some dp solutions of easy problems, as I said mostly solutions are done by prefix sums.

You can also try CSES DP problems and Atcoder educational round.

I believe this contest helped me a lot when I was learning Dynamic Programming

It has several basic dp problems .